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μ opioid receptor carboxyl terminal-derived peptide alleviates morphine tolerance by inhibiting β-arrestin2

NeuroReport, ISSN: 1473-558X, Vol: 34, Issue: 18, Page: 853-859
2023
  • 1
    Citations
  • 0
    Usage
  • 2
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    1
    • Citation Indexes
      1
  • Captures
    2
  • Mentions
    1
    • News Mentions
      1
      • 1

Most Recent News

New Opioids Study Findings Have Been Reported by Investigators at Xuzhou Medical University (M Opioid Receptor Carboxyl Terminal-derived Peptide Alleviates Morphine Tolerance By Inhibiting B-arrestin2)

2023 DEC 14 (NewsRx) -- By a News Reporter-Staff News Editor at Pain & Central Nervous System Daily News -- Current study results on Opioids

Article Description

The interaction between the μ opioid receptor (MOR) and β-arrestin2 serves as a model for addressing morphine tolerance. A peptide was designed to alleviate morphine tolerance through interfering with the interaction of MOR and β-arrestin2. We developed a peptide derived from MOR. The MOR-TAT-pep peptide was expressed in E. coli Bl21(DE3) and purified. The effects of MOR-TAT-pep in alleviating morphine tolerance was examined through behavior tests. The potential mechanism was detected by Western blotting, Mammalian Two-Hybrid and other techniques. The pretreatment with MOR-TAT-pep prior to morphine usage led to an enhanced analgesic effectiveness of morphine and a significant reduction in the development of morphine tolerance. The peptide directly interacted with β-arrestin2 during morphine treatment and deceased the membrane recruitment of β-arrestin2. MOR-TAT-pep effectively suppressed the increase of β-arrestin2 induced by morphine. The MOR-TAT-pep could alleviate morphine tolerance through inhibition of β-arrestin2.

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